Taichi Okumura, Ph.D.

Statistical Methods for Behavioral Sciences

( Japanese / English )

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Associate Professor, Department of School Education, Joetsu University of Education

Office: 714 Jinbun Bldg., 1 Yamayashiki, Joetsu, 943-8512 Japan


Research Interests

Education

Professional Experiences

Academic Affiliations

Publications

Papers (peer-reviewed)

  1. Okumura, T., Mori, K., Miyashita, T., Nishimura, A., & Kitajima, M. (2015). The development, reliability, and validity of a Japanese version of the MBI-ES. Japanese Journal of Psychology, 86(4), 323-332. (in Japanese with English abstract) [Abstract]
  2. Okumura, T. (2014). Empirical differences in omission tendency and reading ability in PISA: An application of tree-based item response models. Educational and Psychological Measurement, 71(4), 611-626. [Abstract]
  3. Nishimura, A., Mori, K., Miyashita, T., Okumura, T., & Kitajima, M. (2013). A longitudinal study of the burnout process among elementary and junior high school teachers in Japan. Journal of Japanese Clinical Psychology, 31(5), 769-779. (in Japanese with English abstract)
  4. Mori, K., Nishimura, A., Miyashita, T., Okumura, T., & Kitajima, M. (2013). Factorial validity of a burnout scale for Japanese junior high school teachers. Japanese Journal of Personality, 21, 278-290. (in Japanese with English abstract)
  5. Okumura, T. (2009). Detection of difference of rating characteristics of an novice from the ones of experts on an essay test. Japanese Journal for Research on Testing, 5, 137-143. (in Japanese with English abstract)
  6. Okumura, T. (2008). An exploratory method for determining measurement design based on the posterior predictive distribution. Japanese Journal for Research on Testing, 4, 13-21. (in Japanese with English abstract)
  7. Okumura, T. (2008). Sample size determination for data analysis by hierarchical linear models: An application to a social psychological research using data of TIMSS2003. Japanese Journal of Behaviormetrics, 35, 221-228. (in Japanese)
  8. Okumura, T. (2007). Sample size determination for hierarchical linear models considering uncertainty in parameter estimates. Behaviormetrika, 34, 79-93.

Research Notes

  1. Okumura, T. (2016). Publication bias in meta-analysis of single-case research under a selection based on the statistical significance. Bulletin of Joetsu University of Education, 35, 35-42.
  2. Okumura, T. (2013). Regression to the mean in pretest-posttest comparisons with two-level selection of subjects. Bulletin of Joetsu University of Education, 32, 87-92. .
  3. Okumura, T. (2012). Statistical inference in census. Bulletin of Joetsu University of Education, 31, 57-62. (in Japanese with English abstract)
  4. Okumura, T. (2011). A Bayesian approach to the one-factorial mean comparison of paired and non-paired data. Bulletin of Joetsu University of Education, 30, 41-48. (in Japanese with English abstract)
  5. Okumura, T. (2009). The actual statistical power of empirical Bayes estimator in the hierarchical linear models. Komazawa Annual Reports of Psychology, 11, 1-7. (in Japanese with English abstract)
  6. Okumura, T. (2009). Bayesian estimation of true scores by parallel measurement on arbitrary frequency. Komazawa Annual Reports of Psychology, 11, 9-16. (in Japanese with English abstract)
  7. Okumura, T. (2008). On the statistical power and the confidence interval range in the hierarchical design of experiment. Komazawa Annual Reports of Psychology, 10, 33-39. (in Japanese with English abstract)
  8. Okumura, T. (2008). The actual level of significance of empirical Bayesian estimator in the hierarchical linear models. Komazawa Annual Reports of Psychology, 10, 41-47. (in Japanese with English abstract)
  9. Okumura, T. (2008). Bootstrap estimation of reliability coefficient by repeated measurement. Bulletin of the Graduate School of Education, The University of Tokyo, 47, 189-194. (in Japanese with English abstract)

Books

  1. Okumura, T. (2012). Statistical analysis of educational data: Strategies for school self-evaluation and assessment of teaching effectiveness. Tokyo: Kyoritsu. (in Japanese)
  2. Yamaguchi, S., Lin, C., Morio, H., & Okumura, T. (2008). Motivated expression of self-esteem across cultures. In R. M. Sorrentino & S. Yamaguchi (Eds.), Handbook of motivation and cognition across cultures (pp. 369-392). San Diego, CA: Elsevier.
  3. Yamaguchi, S., Okumura, T., Chua, H. F. C., Morio, H., & Yates, J. F. (2007). Levels of control across cultures: Conceptual and empirical analysis. In F. J. R. van de Vijver, D. A. van Hemert, & Y. H. Poortinga (Eds.) Multilevel analysis of individuals and cultures (pp. 123-144). Erlbaum.

Presentations (peer-reviewed)

  1. Yamaguchi, S., Lin, C., Morio, H., & Okumura. T. (2009). Functional equivalence of self-esteem among Western and East-Asian cultures. The 10th annual conference of Society of Personality and Social Psychology (SPSP). Tampa, Florida.
  2. Yamaguchi, S., Lin, C., Morio, H., & Okumura. T. (2008). A critical examination of the East Asians' Self-Criticism Hypothesis. The 19th International Congress of the International Association for Cross-Cultural Psychology (IACCP). Bremen, Germany.
  3. Okumura, T. (2007). Sample size determination for hierarchical linear models based on preliminary data. The 72nd Annual Meeting of the Psychometric Society. Tokyo, Japan.

Grants

  1. 2015-2018 Principal Investigator, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science (JSPS)
  2. 2012-2015 Principal Investigator, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science (JSPS)
  3. 2012-2015 Co-Investigator with Dr. Toshie Miyashita (Joetsu University of Education), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science (JSPS)
  4. 2008-2009 Principal Investigator, Grant-in-Aid for JSPS Fellows, Japan Society for the Promotion of Science (JSPS)

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